Infineon Technologies S29GL128S11DHBV23

Overview

S29GL128S11DHBV23 from Infineon is a 128 Mb (16 MB), 3.0 V core, parallel-interface MIRRORBIT™ Eclipse flash memory with ×16 data bus, 90 ns random access time, 15 ns page access time, and industrial temperature grade (–40°C to +85°C). It integrates hardware ECC for single-bit error correction, 128-kbyte uniform sector erase, and a 512-byte write buffer-enabling fast embedded code storage and firmware updates in microcontroller-based systems.

For engineers reviewing the S29GL128S11DHBV23 datasheet, S29GL128S11DHBV23 pinout, S29GL128S11DHBV23 application, or S29GL128S11DHBV23 equivalent, key selection criteria include asynchronous read timing, Versatile I/O voltage support (1.65 V to VCC), OTP array security, CFI compliance, and AEC-Q100 grade availability across package variants.

Technical Context

This device implements an asynchronous parallel interface with word-aligned addressing (A0–A22), supporting both standard and page-mode reads. Its embedded algorithm controller (EAC) manages program/erase operations autonomously, including suspend/resume capability and status reporting via status register, data polling, or RY/BY# pin.

The flash uses 65-nm MIRRORBIT™ Eclipse process technology and features dual-voltage I/O (VIO = 1.65 V to VCC) independent of core supply (VCC = 2.7 V to 3.6 V), enabling interoperability with mixed-voltage SoC buses while maintaining full 16-bit data throughput and deterministic timing behavior.

Key Specifications

Pinout & Package

Package: 56-ball VBU Fortified BGA (9 mm × 7 mm, 0.8 mm pitch), RoHS-compliant, lead-free.

Key Features

Applications

Equivalent & Alternatives

The following parts are listed as comparable options for similar parallel NOR flash applications.

Compared with S29GL128S11DHBV23, the TSOP variant trades packaging flexibility for mechanical simplicity, while the Macronix alternative reduces cost at the expense of on-die ECC and OTP security-making Infineon's part optimal for safety- or mission-critical deployments requiring zero-host-intervention data integrity.

Availability

S29GL128S11DHBV23 is available at Aetrix Electronics and suitable for automotive instrument clusters, industrial PLCs, medical imaging bootloaders, and carrier-grade networking equipment requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for S29GL128S11DHBV23 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.

Manufacturer

Infineon Technologies is a German semiconductor manufacturer specializing in power management, automotive ICs, and secure microcontrollers, with leadership in flash memory for mission-critical embedded systems.

The GL-S family was designed specifically for high-reliability, code-execution-capable parallel NOR flash applications in automotive, industrial, and medical electronics-emphasizing XIP performance, data integrity, and long-term firmware persistence.

FAQ

Does S29GL128S11DHBV23 support execute-in-place (XIP) operation?

Yes. The device supports true XIP operation due to its fast 90 ns random access time and asynchronous interface, allowing microcontrollers to fetch and execute code directly from flash without copying to RAM. This is validated by its use in automotive instrument clusters and industrial HMI systems where low-latency instruction fetch is mandatory.

What is the function of the VIO pin, and can it be tied to VCC?

VIO sets the I/O buffer voltage level independently of VCC and must be supplied within 1.65 V to VCC. It can be tied to VCC for 3.3 V operation, but separating VIO enables direct interfacing with 1.8 V or 2.5 V host processors-eliminating external level shifters and reducing BOM count and signal integrity risk.

How does the 512-byte write buffer improve programming efficiency?

The buffer allows up to 256 words (512 bytes) to be loaded before initiating a single embedded program operation, reducing command overhead and bus arbitration delays. Measured performance shows ~1.5 MBps effective write speed-approximately 4× faster than sequential single-word programming for firmware image updates.

Is the OTP array truly one-time programmable, and how is it protected?

Yes. The 1024-byte OTP array contains two independently lockable regions. Once locked via dedicated CFI commands, bits cannot be altered-even with full VPP programming voltage. Locking is irreversible and verified by status register bits, making it suitable for cryptographic keys and calibration constants requiring permanent write-protection.